Her abdomen is white. Shes kinda tubby but still thermo regulates.
I am sure it is by now. It was an old picture.

The warm hide should be her main hide, if not how will she digest properly. She must spend at least a few hours a day there. If she is avoiding it, there is a reason. Her abdomen is too large when compared to the rest of her body. A geckos who is simply overweight will have a fatter tail and limbs as well. Superworms and waxworms are not helping her any.
Make sure it's not too hot for her comfort. It's a very common problem.